board of elections, d.c. mayor vincent gray responded to questions about the criminal investigations surrounding contributions to his 2010 campaign. >> listen, our record speaks for itself. look at the fiscal stability in this city, the economic development, the way people are getting back to work. >> reporter: four high-level aides to the gray 2010 campaign pleaded guilty to felony charges. the mayor himself has not been charged with any wrongdoing. council member tommy wells is among six declared rivals. he released a written statement saying, quote, vince gray was elected under false pretenses and doesn't deserve a second chance, because he ran a corrupt campaign, end quote. candidate muriel bowser released a statement saying now that mayor gray is seeking re-election, he will have to answer many questions about his 2010 campaign. political activist, phil pinnal. >> i hope before the april 1st primary that that situation is resolved. >> reporter: mayor gray sent a letter to supporters today, asking them to